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Old 05-12-2017, 03:37 PM   #34
Vorshlag-Fair
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Project Update for May 11th, 2017: We've done four track events since my last update in here, including one HPDE event, two NASA race weekends where we were chasing TTD track records, and an SCCA Club Trials event - I cover the first 3 in this update. The added power of the CAI + header + exhaust were much appreciated, and you can read about that below. The E46 is getting faster on track, but the "streetable" aspects are starting to diminish, too. That is not shocking news - as a car gets racier, it gets less streetable.

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With proper roll bar and harnesses I could do some right seat coaching with Amy at TWS

We still haven't had the engine tuned yet (after the custom header/exhaust/CAI), but we have the hardware and software on hand and are working towards that goal. We did tackle the long overdue safety upgrades by building a custom 4-point roll bar / welded half cage. Then Schroth harnesses were added, finally. As I write this the HARD Motorsport flares are being added - will show some of that also.

WHAT ABOUT THAT CARBON HOOD?

Last time I teased a picture of carbon fiber hood built by AJ Hartman that we weighed at 9.5 pounds. We have an extra one we got that will go on this 330 soon, but not in this update. The hood was originally ordered for this E46 M3 shown below.

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This is a customer build we are doing with an E46 M3 chassis, big nasty V8, major aero mods, massive tires, and lots of other go-fast tweaks. You can read more about this in that car's forum build thread here.

NASA at MSR-C, MARCH 11-12, 2017

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Running our red TTD prepped 330 at MSR-Cresson, once again chasing a track record in March 2017 was a weird case of deva vu. In 2016 we were chasing the TTD record in our red 330 with stock power, overweight, on dead 245mm Hoosiers. But even way back in 2010 we set the (soft) TTD record with our blue 330, also on the wrong tire and with stock power. Here's a quote from that old forum build thread for the blue car:

Quote:
3/24/2010: I set the TTD track record at MSR-C with a dismal 1:29.8 last weekend. ... I'm not proud of that as a "lap record", being that its slower than the TTE record, but it was a good shake-down run on the wrong tires with a slug of a motor. We'll go back and run MSR-C soon with more tire (Hoosier 285s), more power (header + exhaust + VANOS repaired), and see if I can get into the 1:25-ish range. That's what I think the car is capable of at MSR in TTD trim. Won't be able to work on the lap record until 2011, though... and by then it might be in TTC. Oh well.
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Left: Blue E46's 2010 TTD record setting setup on 265mm Yokohamas. Right: Same car on 285 Hoosiers was MUCH faster

Not one week after that 2010 NASA event I had flared the blue car to fit the (then TTD legal) 285mm Hoosier R6 tire, using M3 front fenders and hammered rear fenders. Shortly after we added the CAI, eBay header, and a custom race exhaust. We should have gone back to reset the TTD record in 2011, but by then we had suffered a "number of engine failures" that soured me on the M54 engine and I sold that E46 330. Since then the NASA rules have changed and the E46 330 has both gained weight and lost 7 class points in the base classing, plus the tire rules changed, which makes the old setup on the blue 330 impossible to do in TTD today. Shame, as I really liked the 285s on that car - wider tires really woke it up!

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Our old blue E46 330 is still running on track in 2017 - and it is still quick

The guy we sold the blue 330 to is still running it 2+ times a month on track, now on 275mm Conti slicks. He's working on getting his TT license and in the pictures above (April @ TWS) he was doing lead-follows with Amy in our 330, with them both running in HPDE4.

Event photo gallery: https://vorshlag.smugmug.com/Racing-...-MSR-C-031117/

So back to the MSR race weekend: unlike last year's March MSR-C event with NASA, where I could run no quicker than a 1:27.604 on a dying set of Hoosiers, this time the 330 had a fresher set of Hoosier R7s (3 events on them instead of 7!) - and fresh tires can make all the difference in the world. We also had more horsepower (+21 whp), less weight, real MCS coilovers, Whiteline swaybars, and a year's worth of testing to put us closer to our goal of resetting the TTD track record. The old record coming into this 2017 NASA race weekend was a 1:27.5, but like I said in 2010, I felt like it should have always been closer to a 1:25.0. I have been continuously mystified as to why the TTD record was so "soft" here at MSR for the past 7 years.

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We got to Cresson late afternoon on Friday to unhook the trailer, but I was REALLY sick with bad allergies. Violently sneezing, coughing, stopped up, blurry eyes - I had never had an allergy attack this bad. The weather was also wet, unseasonably cold, and with with high winds all weekend. I ended up being sick all weekend, plus was still really sore from the truck wreck I had weeks earlier, which all kept me from driving at 100%. I was also instructing and working with 4 different students, giving three check rides, so super busy that weekend. Friday night I barely slept 2 hours, which put me in worse shape the next morning. All in all this was not one of my best weekends of driving, but it still went pretty well.

Saturday

Since it had rained a bit the night before, it was cold and windy Saturday morning. So I went out in the BMW in the "TT Warm-up" session on a green track. I was buried in traffic and only ran a 1:25.5 lap, about a half second slower than my November test (1:25.0, see lap video links below). A TTC classed M3 in front of me the entire session was spraying my car with SHEETS of fuel (he had a busted fuel filler cap) so I came in after getting a good enough time for gridding in the next session. Still running the Sparco EVO II seats with OEM seat belts, which meant I had to brace my upper body, so my injured back was killing me.

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Left: Lots of S2000s ahead and behind me on grid. Right: Jamie's Mustang doing well in ST3

In the first official TT session an hour later I busted off a 1:24.085, smashing the old TTD track record by 3.4 seconds. The R7 tires were showing their age and taking 4+ laps to come up to temp before they had real grip. After a lot of sliding around they were working better and giving some decent lateral g numbers, but in laps 1-3 they weren't performing.

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I went out in the third session (TT session 2) and ran a similar 1:24.154 to back up that time, but the weather and traffic in the middle of the LARGE field of TT drivers wasn't favorable.

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I ended the day then, skipping the last session, hoping for some traffic free laps in the "golden" first session of Sunday morning. Picked up a trophy for the day but also the 2016 Regional TTD championship trophy at the NASA banquet that night. I was feeling pretty terrible and was just dying to get some sleep at the hotel.

Sunday

The day again started off with lousy weather - overcast, windy, and cold with ambient temps of 43F and wind chill in the 30's. I skipped the 1st session but there were some fast times, and I regretted not going out. I was still gridded fairly well for session 2 and I told myself that if I had times in the 1:23 range, I'd put the car on the trailer and call it a day. We had already smashed the record, and not having a single TTD competitor that weekend made running every session somewhat pointless. I also wanted to save the remaining tire life on this set for another event coming up (HPDE).

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This video shows the new TTD record lap on Sunday

In session 2 after several laps of getting the tires up to temp I finally ran a 1:23.789 lap, beating the old track record by almost 3.7 seconds and even beat the record I set the day before by a few tenths. You can see from this list of videos/lap times I have run at MSRC how far we've come in this 330:

I guess we reset the track record closer to what it should be, but with no other TTD competitors we once again didn't have a chance to win any tires - and we would need a fresh set before NASA @ TWS in April. We still don't have a max prepped TTD car, and with better conditions (and better driving) a full tilt TTD car might inch closer to the 1:22 or even 1:21 range. TTC record was reset by an S2000 by a LOT this same weekend, down to a 1:18.691 (from a 1:21 previous record), which was an eye opener. That was the second quickest TT time of the weekend, behind a 1:17.444 time from a TT3 M3. I have the end of day results posted here as well as in the photo gallery.

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Time Trial Results for both days (each day is a different points event)

Pros and Cons: Tire rub - all weekend I could feel the tires hitting the edges of the fenders in one corner. Oddly enough the left side tires had contact on this predominantly left hand turn course. It was from a series of bumps on the driving line at the entry of Buzzard Neck (T4) which were causing the suspension to compress on the left side enough to touch. I kept an eye on this all weekend, but its been doing it ever since we installed these 17x10" wheels. I thought I had re-rolled the front and rear enough times to clear but apparently it needs more. Drastic measures required.

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On the plus side the extra power from the header/exhaust/CAI was apparent - and now all I can think is, "I want some more!". The exhaust sound was also pretty tame, which was what we were going for. The video below shows the exhaust sound at normal sub 2500 rpm levels. The new ClutchMasters flywheel and clutch worked great.

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This video shows a short exhaust sound test driving around MSR Cresson

With class wins both days we had scored 200 more points towards the regional TTD championship, and we were glad to get out of this crazy weather - we hung out inside the trailer during down time the rest of the day, and had the car loaded in the trailer before lunch. I stuck around until the last HPDE run group to instruct then we hit the road. The driving wind and cold just took everything out of us both, Amy never even drove a single lap (she wasn't feeling it, I dunno), and I was sick as a dog all weekend. Glad to put this event in the rear view... but we still celebrated our New First Tack Record in the TTD car.

TDE at MSR-C 3.1 MARCH 25-26, 2017

Amy signed us up to The Driver's Edge HPDE event on March 25-26, 2017, two weeks after the NASA event and at the same facility. She was more excited about running this HPDE event on the 3.1 configuration of the same track for some reason than she was at the previous NASA weekend. She really likes the little 1.3 mile course - which has lots of elevation change - and when joined with the 1.7 course becomes the 3.1.

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Lots of Vorshlag customers go to these HPDE events so we were there for support and to see friends. She ran in the yellow group on the 3.1 mile course on Saturday and had a lot of fun in all 4 sessions. Since I wasn't an instructor for this group I couldn't do any right seat coaching, which would have likely helped her find more time - but she was quick for the yellow group.

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We split the 2 day entry so I hopped in the 330 and ran it all day Sunday in the red group. Lots of corners, hard to remember, but its a fun track. We didn't take any in-car video since we were just out having fun.

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